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| iso lat long name | |
| US 37.09024 -95.712891 United States | |
| ZA -30.559482 22.937506 South Africa |
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| path { | |
| stroke: white; | |
| stroke-width: 1px; | |
| fill: #cbcbcb; | |
| } | |
| path.selected { | |
| fill: steelblue; | |
| } | |
| circle { | |
| fill: none; | |
| stroke: red; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script src="http://d3js.org/topojson.v0.min.js"></script> | |
| <script> | |
| var width = 960, | |
| height = 500; | |
| var projection = d3.geo.mercator() | |
| .center([0, 5 ]) | |
| .scale(150); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| var path = d3.geo.path() | |
| .projection(projection); | |
| var g = svg.append("g"); | |
| var zoomMap = d3.behavior.zoom() | |
| .on("zoom",function() { | |
| g.attr("transform","translate("+ | |
| d3.event.translate.join(",")+")scale("+d3.event.scale+")"); | |
| g.selectAll("path") | |
| .attr("d", path.projection(projection)); | |
| }); | |
| this.svg.call(zoomMap); | |
| function drawNodes(){ | |
| d3.tsv('data.csv', function(data){ | |
| g.selectAll('path') | |
| .filter(function(d){ | |
| return data.find(function(d1){ | |
| return d1.iso == d.properties.iso_a2; | |
| }) | |
| }) | |
| .attr('class', 'selected'); | |
| g.append('g') | |
| .selectAll("circle") | |
| .data(data) | |
| .enter() | |
| .append("a") | |
| .append("circle") | |
| .attr("cx", function(d) { | |
| return projection([d.long, d.lat])[0]; | |
| }) | |
| .attr("r", function(d){ | |
| return 5; | |
| }) | |
| .attr("cy", function(d) { | |
| return projection([d.long, d.lat])[1]; | |
| }) | |
| .transition() | |
| .duration(750) | |
| .delay(function(d, i) {return i * 100; }) | |
| .each(pulse); | |
| // Ref: http://bl.ocks.org/chiester/11267307 | |
| function pulse() { | |
| var circle = d3.select(this); | |
| (function repeat() { | |
| circle = circle.transition() | |
| .attr("r", 2) | |
| .transition() | |
| .attr("r", 10) | |
| .ease('linear') | |
| .each("end", repeat); | |
| })(); | |
| } | |
| }) | |
| } | |
| d3.json("world-map-new.json", function(error, topology) { | |
| g.selectAll("path") | |
| .data(topojson.object(topology, topology.objects.subunits).geometries) | |
| .enter() | |
| .append("path") | |
| .attr("d", path) | |
| .attr('class', 'feature'); | |
| drawNodes(); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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